N
N4390J is a flight number operated by ISCH CARL J between Bethesda Hospital Helistop (4OH2) and Portland Municipal Airport (KPLD). SkyMeter last tracked N4390J on September 4, 2026. The flight is most often flown by a PIPER Piper Cherokee. Typical block time is 0h 55m. SkyMeter has observed 3 legs of this flight number via ADS-B.
SkyMeter tracks historical flight activity from ADS-B data — this is not a live gate-to-gate status feed.
✈
FLIGHTS
3
last 90 days
⏱
AVG DURATION
55m
tracked time
📅
SERVICE PERIOD
5/31/2025 → 9/4/2026
first → last seen
🗺
ROUTES / TYPES
2 / 1
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged
Routes flown
By count · last 90 days
Aircraft types
Equipment used on this number
Safety profile
Flagged flights · last 90 days
Go-arounds
0
Unstable approach
0
Rejected TO
0
Stall warnings
0
Overspeeds
0
Runway excursion
0
Counts represent flights with at least one occurrence of each
flag, not the total event count. See /incidents for individual events.
Recent flights
Newest 30 operations of N4390J
4/20/2026
55m
△ Low approach-stability score
4/18/2026
1h 25m
No alerts
3/14/2026
1h 55m
No alerts
2/10/2026
28m
No alerts
© SkyMeter ·
All flight data subject to ODbL attribution
·
Tracked: 90-day window